[Emc-users] Help[EMC-users] how to interface g-code with parallel ports
Hi, i am new to EMC2 may be my question is silly i have created a circle using g-code [G2 X0 Y0 I5] how can i interface this x and y axis to parallel ports. Also i am try to create a circular motion using g-code by using 2-axis x and y then using this axis i need to control stepper motors. can any one help for this. Thanks sakthi -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nc code exceeds negative limit
At 06:08 PM 5/21/2010, you wrote: Thats not what you sent, there, each inch was a -0.022 z move for each move I commented out in the first section, then it switched to -0.030 till it hit the straight section. Obviously this is test code, and I'm being a picky old fool. The teacher mode kicks in and I can't help myself. Ach, ya... I see what you are saying now. I copied the coords from a program output that dealt with the tapers on 5 centers and it interpolates the dimensions in between. This will be the odd case. Most of the tapers I have were designed on 1 centers and don't follow such nice even tapers between the 5 centers... Doh! That's what the rod taper is based on. I'm using a 2 lead in and a 2 A very wee bit. It compresses down and there's little or no give. The vacuum pump is a piston driven one, not one a them funky little vane ones. Powerful sucker, so to speak... ;-) So is the one I mentioned. It could pull a vacuum good enough to make a poor vacuum tube amplifier. Kewl. How many CFM is yours? I'm just air cutting right now. I'll to take some video on my digital camera this afteroon and then try to figger how to post it online. That sounds cool. I think most of us would like to see how long a machine you have built as for fine fly rods in say 3 pieces, my imagination says you would need the two butt pieces to be around 4 feet each, so thats a 60 X machine. Yep. The bed itself is 6 1/2 feet long. I can cut up to a 53 long strip. Most of the rods I make are 8' and under, and most of those are two piece rods. Anything longer and they're usually a three piece rod. I work with the hex shaped bamboo rods typically, but the design of this machine allows me to cut the other cross sections (penta, quad, and others) by a simple rotation of the cutter heads. In the Hex cross-section there are six strips that make up each completed rod section. I've been hand planing each of those 6 strips per section - butt and 2 tips for a total of 18 strips. Usually takes me about 45 minutes to an hour per strip. At the feeds and speeds I'll be working with on the machine, I should be able to crank out a strip every couple minutes. Nice little time saver... Mark -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Problem with the Arduino script by Jeff Epler
Hi! this is the first time I use a Mailing-List, so I hope I will make no failures! I found the Arduino interface for EMC2 a few weeks ago on this page: http://axis.unpy.net/01198594294 In my opinion it seemed to me as a good solution for my selfbuild MPG so I tried to use it yesterday (without any changes) I followed the instructions on Jeff's page. (sketch to arduino, arduino.py rename chmod and in path, hal an xml file in one folder...). python-serial is installed. But when trying to run this, i get this error: Traceback (most recent call last): File /usr/bin/pyvcp, line 41, in module import vcpparse File debian/tmp/usr/lib/python2.5/site-packages/vcpparse.py, line 27, in module ImportError: /usr/lib/libGL.so.1: undefined symbol: XGetErrorDatabaseText arduino-vcp.hal:2: pyvcp exited without becoming ready I'm not that firm in python so i don't know what to do now... Is there a package missing? I hope someone here can help me solving this problem. My System is the actual EMC2 Livecd installed in parallels on a mac just for testing (my mill is running on a dedicated machine) Thanks Greets Daniel -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Help[EMC-users] how to interface g-code with parallel ports
Sakthi, On Sat, May 22, 2010 at 1:14 AM, sakthivel M sakthi...@fedlabs.in wrote: Hi, i am new to EMC2 may be my question is silly i have created a circle using g-code [G2 X0 Y0 I5] how can i interface this x and y axis to parallel ports. You have your answer to this question. EMC2 will connect the g-code to the parallel port. Also i am try to create a circular motion using g-code by using 2-axis x and y then using this axis i need to control stepper motors. can any one help for this. If you have not installed Ubuntu and EMC2 on your computer you should download a live CD version, burn it (bootable) to a CD, boot your computer from it in your CD drive and run EMC2 on your computer. You will then be able to start EMC2, choose a stepper simulator and see how EMC2 make the connections. thanks Stuart -- dos centavos -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Homing at a Encoder Index.
From looking at the .ini and .hal files the first thing I would do is zero the home values and home offset values in the .ini file. You can set them as you wish after the axis will home. I would use a very small value to help determine the direction of motion after the homing is done. I don't know motenc at all but I think the ## Connect home index to motion controller. #net Xhomemotenc.0.enc-00-index = not.0.in #net Xhomenot not.0.out = axis.0.home-sw-in #net Zhomemotenc.0.enc-01-index = not.1.in #net Zhomenot not.1.out = axis.2.home-sw-in lines should be uncommented to get an index pulse into the controller. thanks Stuart -- dos centavos -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] HELP?! Problems with a Reinstall of EMC 2.3 No OpenGL for Axis?
I'd love to be able to do that.. but I've misplaced the original CD and the ISO that made it. I made a bad assumption and decided to toss the ISO since I could always download it form SOMEWHERE again later. On May 21, 2010, at 3:11 PM, Przemek Klosowski wrote: On Fri, May 21, 2010 at 2:50 PM, Michael Jones ma...@michaelandholly.com wrote: I'm currently having problems with a reinstall after switching some stuff around. I recently moved some hardware around in my shop. I decided I didn't need that nice LCD monitor on the CNC machine so I switched out a decent CRT monitor (Higher resolution etc). For some reason the system would no longer support any resolution higher than 800x600 (even though it had run as 1024x768 on the LCD). I am guessing that the CRT is of the older type and it doesn't report its available resolutions, unlike the LCD. I would reinstall the EMC version that worked best on your hardware, and then edit the X configuration file to explicitly specify the monitor parameters (horizontal and vertical frequency range), along the lines of Section Monitor IdentifierCM752ET HorizSync 31-101 VertRefresh60-160 EndSection and call out the desired display resolution in Section Screen Section Screen IdentifierDefault Screen MonitorCM752ET DefaultDepth16 SubSection Display Depth16 Modes 1280x1024 EndSubSection EndSection -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nc code exceeds negative limit
On Saturday 22 May 2010, Mark Wendt (Contractor) wrote: At 06:08 PM 5/21/2010, you wrote: Thats not what you sent, there, each inch was a -0.022 z move for each move I commented out in the first section, then it switched to -0.030 till it hit the straight section. Obviously this is test code, and I'm being a picky old fool. The teacher mode kicks in and I can't help myself. Ach, ya... I see what you are saying now. I copied the coords from a program output that dealt with the tapers on 5 centers and it interpolates the dimensions in between. This will be the odd case. Most of the tapers I have were designed on 1 centers and don't follow such nice even tapers between the 5 centers... Doh! That's what the rod taper is based on. I'm using a 2 lead in and a 2 A very wee bit. It compresses down and there's little or no give. The vacuum pump is a piston driven one, not one a them funky little vane ones. Powerful sucker, so to speak... ;-) So is the one I mentioned. It could pull a vacuum good enough to make a poor vacuum tube amplifier. Kewl. How many CFM is yours? Pulling from atmospheric, I'd guess about 3. I have it hooked to a 3.5 foot piece of 6 pvc, capped on both ends, trying to force a piece of maple for a gunstock to a drier condition. 15 years its been rough cut, and when I laid into it to cut the ramp for the thumbhole, the next thing I knew there was a hairline crack running from the top of the butt clear into the rear of what would be the action space. Another piece of this same plank did the same thing 6 or so years back, and as it was a try this to see if it works model, I just poured superglue into it as I carved. Several ounces of it. So that stock does work although I wasn't impressed with how I did the back of the thumbhole, and of course with all those lines of superglue in it, some over 1/16 wide, its butt ugly. Too short to be a boat hook, it will fit a wood fire some day. Unforch, I can't seem to find a leak in my sewer pipe glueup. The end that allows me to open it is a 6 screw in cap, at least thats where a soap solution bubble if I put a couple pounds of pressure in it, and std gun caulking just seems to suck into the threads eventually allow a pinhole leak, so I need to cycle it every 30 minutes to keep it below 20. Not practical. And with so much caulking sucked into the threads, I expect I'll have to make wrenches to get it open again even after I cut the now dried caulk. I'm just air cutting right now. I'll to take some video on my digital camera this afteroon and then try to figger how to post it online. That sounds cool. I think most of us would like to see how long a machine you have built as for fine fly rods in say 3 pieces, my imagination says you would need the two butt pieces to be around 4 feet each, so thats a 60 X machine. Yep. The bed itself is 6 1/2 feet long. I can cut up to a 53 long strip. Most of the rods I make are 8' and under, and most of those are two piece rods. Anything longer and they're usually a three piece rod. I work with the hex shaped bamboo rods typically, but the design of this machine allows me to cut the other cross sections (penta, quad, and others) by a simple rotation of the cutter heads. In the Hex cross-section there are six strips that make up each completed rod section. I have had one or two of those, very cheap ($12) Japanese made at the time (1965). Swing nice, and get crooked just by standing them in the corner overnight. I don't recall what became of them. But I do recall how nicely they handled, and would like to have another someday. Fiberglass and carbon fiber just don't do it for me. When you are in production, let this list know where we can buy them, and about the cost because I would like to have another before they toll the bells for me. I've been hand planing each of those 6 strips per section - butt and 2 tips for a total of 18 strips. Usually takes me about 45 minutes to an hour per strip. At the feeds and speeds I'll be working with on the machine, I should be able to crank out a strip every couple minutes. Nice little time saver... Yes, and since time=money, which means you can compete with Orvik on a leveler field and still make a profit. Whats not to like. ;-) Mark --- --- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) As a goatherd learns his trade by goat, so a writer learns his trade by wrote. -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net
[Emc-users] Howto files for EMC.
Hi All; Does anyone know if there are Howto files for EMC available on the internet or anywhere? For Linux, those type files really makes incredible detailed and complicated setup operations a cook book process. Even if they do not address your exact problem they show all the things that need to be addressed. Here is hoping. Thanks Don -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Howto files for EMC.
http://www.linuxcnc.org/docview//2.4/html/ scroll down... Regards, Alex On 5/22/2010 9:20 PM, EKCo Inc Don Stanley wrote: Hi All; Does anyone know if there are Howto files for EMC available on the internet or anywhere? For Linux, those type files really makes incredible detailed and complicated setup operations a cook book process. Even if they do not address your exact problem they show all the things that need to be addressed. Here is hoping. Thanks Don -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] RELEASED: emc 2.4.0
Hi When RELEASED: emc 2.4.0 will be on 1 CD? without upgrade to 2.4) thanks aram On Mon, May 10, 2010 at 7:18 PM, Jon Elson el...@pico-systems.com wrote: Neil Baylis wrote: I rebooted again (this is the third time since I did the upgrade to 2.4) and checked lsmod. Still the same: no parport_pc, but parport is loaded with dependencies lp and ppdev. I tried emc again, and now it works. While emc is running, lsmod indicates the following: I might power down and reboot just to make sure it comes up right EVERY time. This sounds suspicious. (and, just in case you didn't know, there is a big difference between logging off and rebooting the kernel.) OK, I'll power cycle and check a few more times. Neil -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Howto files for EMC.
On Saturday 22 May 2010, EKCo Inc Don Stanley wrote: Hi All; Does anyone know if there are Howto files for EMC available on the internet or anywhere? For Linux, those type files really makes incredible detailed and complicated setup operations a cook book process. Even if they do not address your exact problem they show all the things that need to be addressed. Here is hoping. Thanks Don Don, please take a look at http://wiki.linuxcnc.org, its pretty complete. --- --- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Anyone who considers protocol unimportant has never dealt with a cat. -- R. Heinlein -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Howto files for EMC.
On Saturday 22 May 2010, Gene Heskett wrote: On Saturday 22 May 2010, EKCo Inc Don Stanley wrote: Hi All; Does anyone know if there are Howto files for EMC available on the internet or anywhere? For Linux, those type files really makes incredible detailed and complicated setup operations a cook book process. Even if they do not address your exact problem they show all the things that need to be addressed. Here is hoping. Thanks Don Don, please take a look at http://wiki.linuxcnc.org, its pretty complete. Gahh, damned fingers can't keep up with what I'm thinking. The other link should be better anyway. -- - --- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) You have all eternity to be cautious in when you're dead. -- Lois Platford -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Problem with the Arduino script by Jeff Epler
On Sat, May 22, 2010 at 01:39:26PM +0200, Daniel Tenten wrote: ImportError: /usr/lib/libGL.so.1: undefined symbol: XGetErrorDatabaseText http://www.mail-archive.com/emc-develop...@lists.sourceforge.net/msg02827.html Jeff -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Howto files for EMC.
Thanks Alex; Seriously. That is a list of WHAT is available, or what to do. I was hoping for list of HOWTO and WHY to pick from the WHAT list for a given feature or function. Most of the traffic on this mailing list is people trying to discover what to put into the .ini and .hal files to make their machine do what EMC is capable of doing. It appears many people may be accepting less performance because they can not afford the time to discover the better way (by experimenting). And that is a shame when EMC is such a powerful tool. This is not a rebuttal Alex, but a plea. Seriously Thanks Don - Original Message - From: Alex Joni alex.j...@robcon.ro To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Saturday, May 22, 2010 2:53 PM Subject: Re: [Emc-users] Howto files for EMC. http://www.linuxcnc.org/docview//2.4/html/ scroll down... Regards, Alex On 5/22/2010 9:20 PM, EKCo Inc Don Stanley wrote: Hi All; Does anyone know if there are Howto files for EMC available on the internet or anywhere? For Linux, those type files really makes incredible detailed and complicated setup operations a cook book process. Even if they do not address your exact problem they show all the things that need to be addressed. Here is hoping. Thanks Don -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2889 - Release Date: 05/22/10 02:26:00 -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Howto files for EMC.
Don, Can you give an examples of what you are talking about? Are you looking for a HOWTO on a Mill conversion or a lathe Conversion... a plasma cutter, a router...?? You could write a book on how to do that... In fact I think there are a few that have already been written! EMC2 is used for many things. Dave On 5/22/2010 5:37 PM, EKCo Inc Don Stanley wrote: Thanks Alex; Seriously. That is a list of WHAT is available, or what to do. I was hoping for list of HOWTO and WHY to pick from the WHAT list for a given feature or function. Most of the traffic on this mailing list is people trying to discover what to put into the .ini and .hal files to make their machine do what EMC is capable of doing. It appears many people may be accepting less performance because they can not afford the time to discover the better way (by experimenting). And that is a shame when EMC is such a powerful tool. This is not a rebuttal Alex, but a plea. Seriously Thanks Don - Original Message - From: Alex Jonialex.j...@robcon.ro To: Enhanced Machine Controller (EMC)emc-users@lists.sourceforge.net Sent: Saturday, May 22, 2010 2:53 PM Subject: Re: [Emc-users] Howto files for EMC. http://www.linuxcnc.org/docview//2.4/html/ scroll down... Regards, Alex On 5/22/2010 9:20 PM, EKCo Inc Don Stanley wrote: Hi All; Does anyone know if there are Howto files for EMC available on the internet or anywhere? For Linux, those type files really makes incredible detailed and complicated setup operations a cook book process. Even if they do not address your exact problem they show all the things that need to be addressed. Here is hoping. Thanks Don -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2889 - Release Date: 05/22/10 02:26:00 -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] HELP?! Problems with a Reinstall of EMC 2.3 No OpenGL for Axis?
On Saturday 22 May 2010, Michael Jones wrote: Thanks Jon, I may be able to figure out the part with the resolution.. even if I have to put up with lower resolution though, I need to get OpenGL working. I've heard that the NVIDIA drivers have some issues (causing latency ) with the realtime kernel and that the opensource NV drivers are recommended? In fact, I have found that even the nv driver makes the latency figures suck. Not nearly as bad as the nvidia drivers though. When I first built up my micromill, I was not able to get it to move more than 3 or 4 IPM without stalls, so on IRC one night someone suggested I try the nv driver, so I converted it back to use the nv driver. It was enough better that I could get it into the teens per minute before the stalls started. And I noticed the motors sounded a little more musical but the tones weren't really all that pure. Someone a few weeks later said I should try the vesa driver, which does limit the screen resolution a bit but its usable, and my 20 tpi X and Y tables can now run at 25 IPM, which quite pure sounding tones, no raggedness to them at all. The Z was another surprise, as I had excised the original 20 TPI screw that ran up the back of the post, in favor of a 10 tpi that by turning the gear head 90 degrees, allows clearance past it to grab the Z sled about 2 in front of the post where the bolt is anchored solidly and doesn't turn. With a 425 motor on the OEM lashup, the sled was bound on the post and incapable of running a bathroom scale past about 5 pounds before the 425 started cogging in place. Now, with the screw in front of the post, and the nuts that drive it sitting in bearings located above the post and inline with the bolt, a 17 tooth pulley on the 425, and a 42 tooth pulley turning the nuts, I can run it down on the bathroom scales to 155 lbs before the motor starts cogging. And I can, if nothing gets in the way, run the Z axis at 34 IPM if the post is relatively clean lubed with vactra. I can't find anything on this, but will the NV drivers actually load some form of OpenGL so axis will run or am I just spinning my wheels? I don't know as openGL runs with the vesa driver, and I'll let Alex confirm or deny that axis needs openGL. Whatever that answer is, its running the machine very well, on a 9 year old video card. Yes, the video could be better, but the machine runs great. I don't think I loaded the proprietary Nvidia Drivers last time (I can't be sure, it was a long time ago) and axis ran just fine. Recommendations? Try the vesa driver, its much kinder to the latency than anything else I have ever tried. Thanks, Michael On May 21, 2010, at 7:44 PM, Jon Elson wrote: Michael Jones wrote: I'm currently having problems with a reinstall after switching some stuff around. I recently moved some hardware around in my shop. I decided I didn't need that nice LCD monitor on the CNC machine so I switched out a decent CRT monitor (Higher resolution etc). For some reason the system would no longer support any resolution higher than 800x600 (even though it had run as 1024x768 on the LCD). Modern monitors have a digital communication between video card and monitor, so the computer can sense the capabilities of the monitor. If the computer can't get that info, it may restrict the video modes to those that couldn't possibly damage any monitor. It could be just the video cable doesn't have the necessary wires to pass that info, and a different cable would fix it. I have run into that problem myself. I tried installing compiling and installing NVIDIA video drivers which completely screwed things up.. I figured that I would just re-install the whole system from the new 2.3 ISO (after backing up my configurations and such). This was a bad move. My favored gui is Axis and unlike the 2.2. iso, the 2.3 iso did not install everything properly to run EMC with Axis on this system (OpenGL wouldn't work and I couldn't get it to support higher resolutions than 800x600). SO.. The saga continues.. I installed Ubuntu 8.04 distro, drivers etc got everything configured the way I wanted it.. (Including OpenGL) and then installed EMC 2.3.. as soon as the realtime kernel kicked in.. The NVIDIA drivers that support OpenGL would NOT work with the realtime Kernel, and NV would not support OpenGL (I'm not sure if this is normal or not). Yeah, the Nvidia driver thing is a major hassle. And, the drivers are specific to a particular kernel, every time you change kernel, you have to rebuild the driver for that kernel. Jon - - ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users --- ---
Re: [Emc-users] HELP?! Problems with a Reinstall of EMC 2.3 No OpenGL for Axis?
Michael Jones wrote: I may be able to figure out the part with the resolution.. even if I have to put up with lower resolution though, I need to get OpenGL working. I've heard that the NVIDIA drivers have some issues (causing latency ) with the realtime kernel and that the opensource NV drivers are recommended? I really don't know a lot about this, but generally do NOT use Nvidia graphics cards on EMC machines. I use either the i810 built-in graphics or one of the generic XVGA clone boards without high-end graphics accelerators. The high-end accelerators may use large DMA transfers to main memory that cause rt latency problems. The low-end graphics cards eat up a lot of CPU rendering the 3D view in software, but that is at least pre-emptable by rtai, so it doesn't interfere with the motion. That seems to be born out by what performance I get, and which machines get latency messages and which don't. Jon -- ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] HELP?! Problems with a Reinstall of EMC 2.3 No OpenGL for Axis?
Ok.. so here's the weird thing... I completely purged the NVIDIA proprietary drivers from the system, and now OpenGL loads with the NV driver? Some weird incompatibility going on I suppose. But now I noticed that I don't have any sound.. can't win for loosing... I guess I don't really NEED sound on this machine but it bothers me that it's not there. With the NV Driver I'm able to get smooth motion from 0 to around 50ipm (screws and bearingless screws) on my little rebuilt DM4s, but I'm wondering if things might be even a little cleaner with the vesa driver - I'll have to check that one out. This little machine needs some more work and upgrades (better backlash control.. needs to be refit with some bearings on the interface between the Screw and the axes) before it works the way I want it to, but for now it does pretty well. I'm also thinking of a 4th axis.. but before that happens.. I have to get it working again. Thanks for the suggestions. Michael On May 22, 2010, at 6:35 PM, Gene Heskett wrote: On Saturday 22 May 2010, Michael Jones wrote: Thanks Jon, I may be able to figure out the part with the resolution.. even if I have to put up with lower resolution though, I need to get OpenGL working. I've heard that the NVIDIA drivers have some issues (causing latency ) with the realtime kernel and that the opensource NV drivers are recommended? In fact, I have found that even the nv driver makes the latency figures suck. Not nearly as bad as the nvidia drivers though. When I first built up my micromill, I was not able to get it to move more than 3 or 4 IPM without stalls, so on IRC one night someone suggested I try the nv driver, so I converted it back to use the nv driver. It was enough better that I could get it into the teens per minute before the stalls started. And I noticed the motors sounded a little more musical but the tones weren't really all that pure. Someone a few weeks later said I should try the vesa driver, which does limit the screen resolution a bit but its usable, and my 20 tpi X and Y tables can now run at 25 IPM, which quite pure sounding tones, no raggedness to them at all. The Z was another surprise, as I had excised the original 20 TPI screw that ran up the back of the post, in favor of a 10 tpi that by turning the gear head 90 degrees, allows clearance past it to grab the Z sled about 2 in front of the post where the bolt is anchored solidly and doesn't turn. With a 425 motor on the OEM lashup, the sled was bound on the post and incapable of running a bathroom scale past about 5 pounds before the 425 started cogging in place. Now, with the screw in front of the post, and the nuts that drive it sitting in bearings located above the post and inline with the bolt, a 17 tooth pulley on the 425, and a 42 tooth pulley turning the nuts, I can run it down on the bathroom scales to 155 lbs before the motor starts cogging. And I can, if nothing gets in the way, run the Z axis at 34 IPM if the post is relatively clean lubed with vactra. I can't find anything on this, but will the NV drivers actually load some form of OpenGL so axis will run or am I just spinning my wheels? I don't know as openGL runs with the vesa driver, and I'll let Alex confirm or deny that axis needs openGL. Whatever that answer is, its running the machine very well, on a 9 year old video card. Yes, the video could be better, but the machine runs great. I don't think I loaded the proprietary Nvidia Drivers last time (I can't be sure, it was a long time ago) and axis ran just fine. Recommendations? Try the vesa driver, its much kinder to the latency than anything else I have ever tried. Thanks, Michael On May 21, 2010, at 7:44 PM, Jon Elson wrote: Michael Jones wrote: I'm currently having problems with a reinstall after switching some stuff around. I recently moved some hardware around in my shop. I decided I didn't need that nice LCD monitor on the CNC machine so I switched out a decent CRT monitor (Higher resolution etc). For some reason the system would no longer support any resolution higher than 800x600 (even though it had run as 1024x768 on the LCD). Modern monitors have a digital communication between video card and monitor, so the computer can sense the capabilities of the monitor. If the computer can't get that info, it may restrict the video modes to those that couldn't possibly damage any monitor. It could be just the video cable doesn't have the necessary wires to pass that info, and a different cable would fix it. I have run into that problem myself. I tried installing compiling and installing NVIDIA video drivers which completely screwed things up.. I figured that I would just re-install the whole system from the new 2.3 ISO (after backing up my configurations and such). This was a bad move. My
